Liquid discharge device, testing method, and medium with recorded program

摘要

There is provided a technique with which an abnormal discharge state in a discharge component can be determined on the basis of residual vibration. A printer includes a discharge component that discharges ink, a detector that detects residual vibration in the discharge component, and a tester that tests the discharge component on the basis of the change in the period of the residual vibration.

主权项

1. A liquid discharge device, comprising:
a discharge component for driving a drive element to discharge a liquid contained in a cavity from a nozzle that communicates with the cavity; a detector for detecting residual vibration produced by the drive of the drive element; and a tester for testing the discharge component on the basis of a plurality of periods of vibration of the residual vibration.